Download the latest android source code (version 4.4.2 _ r1 or later)

 

The red font indicates the option that is being selected.

 

Install curl

$ Sudo apt-get install curl

 

Install the git Tool(Install the latest version as follows)

Add ppa

$ Sudo apt-add-repository ppa: git-core/ppa

$ Sudo apt-get update

$ Sudo apt-get install git

Git version is the latest

$ Git -- version

Git version 1.8.5.2

Error: sudo apt-add-repository ppa: git-core/ppa error: gpg: requesting key E1DF1F24 from hkp server keyserver.ubuntu.com/gpgkeys: HTTP fetch error 7: couldn't connect to host

Cause: keyserver.ubuntu.com uses a non-standard port 11371, Which is blocked by the company's firewall and the standard port 80 is allowed.

Therefore, you can use port 80 to add software sources as follows:

$ Sudo apt-key adv -- recv-keys -- keyserver hkp: // keyserver.ubuntu.com: 80 E1DF1F24

The green part is the Key you want to request.

 

Download repo Tool

Google tells us this:

$ Curl http://commondatastorage.googleapis.com/git-repo-downloads/repo> ~ /Bin/repo

$ Chmod a + x ~ /Bin/repo

But it seems that it cannot be accessed.

Solution: http://code.google.com/p/git-repo/downloads/detail? Name = repo-1.12 this link provides download repo!

You can also run the following command:

$ Curl http://git-repo.googlecode.com/files/repo-1.12> ~ /Bin/repo

I added a 1.20 s download after http. Actually, no other version of the error is returned.

$ Curl https://commondatastorage.googleapis.com/git-repo-downloads/repo>./repo

The specific repo version can go to view information on the http://code.google.com/p/git-repo/downloads page, download that version is OK.

Modify execution permission

$ Chmod a + x repo

 

Repo init create warehouse

Initialize the android source code and download the latest code.

$./Repo init-u https://android.googlesource.com/platform/manifest

Or get a branch like this like a android-4.4.2_r1

$./Repo init-u https://android.googlesource.com/platform/manifest-B android-4.4.2_r1

If you need to download another branch, change the android-4.4.2_r1 to another branch name. Branch name please view branch in https://android.googlesource.com/platform/manifest/+refs

 

Execute repo sync for synchronization

$./Repo sync

 

When you use repo sync to synchronously download code, the code may be frequently disconnected due to network reasons. You can use the following script to create a script file and automatically download it after it is interrupted.

Create script download. sh

#! /Bin/bash

Echo ========= start repo sync ======================

./Repo sync

While [$? = 1]; do

Echo ===== sync failed, re-sync again ======

Sleep 3

./Repo sync

Done

Chomd a + x download. sh allows it to run, and then enter./download. sh on the terminal to start downloading. Use this step to replace repo sync in the official document. When the terminal cannot be connected, the system takes 3 ms of rest and then automatically repo sync.